Home / 644,081,769.40-965,366,826.90-275,616,009.40

Finding the Fourth Proportional to 644,081,769.40, 965,366,826.90 and 275,616,009.40

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Solution

The fourth proportional to 644,081,769.40, 965,366,826.90 and 275,616,009.40 is: 413,100,579.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,081,769.40 : 965,366,826.90 = 275,616,009.40 : x
  2. Step 2: Convert to fraction form
    644,081,769.40/965,366,826.90 = 275,616,009.40/x
  3. Step 3: Cross multiply
    644,081,769.40x = 965,366,826.90 × 275,616,009.40
  4. Step 4: Simplify right side
    644,081,769.40x = 266,070,552,437,318,528
  5. Step 5: Solve for x
    x = 266,070,552,437,318,528/644,081,769.40
  6. Step 6: Final answer
    x = 413,100,579.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.